Snap-lock coupling ends and lightweight. Double wall type b vent pipe. Rugged, double-wall construction of corrosion-resistant galvanized steel and aluminum. SKU: 41662235 MFG: 4E4 Shop more products by AmeriVent. SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping charges calculated at checkout. $29.80 Quantity In Stock Add to cart Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Size: 4" x 4' Material: Aluminum/Steel Finish: Galvanized Gas vent pipe Double wall type b vent pipe Rugged, double-wall construction of corrosion-resistant galvanized steel and aluminum Snap-lock coupling ends and lightweight FEATURES MFR: 4E4 SKU: 41662235 UPC: 095029400856 Brand: AmeriVent